非接触汇流环电磁耦合机构特性分析与优化  

Analysis and optimization of electromagnetic coupling structure of contactless slip-ring system

作　　者：刘峰 吴志林[1] LIU Feng;WU Zhi-lin(School of Mechanical Engineering,Nanjing University of Science and Technology,Nanjing 210094,China)

机构地区：[1]南京理工大学机械工程学院,江苏南京210094

出　　处：《电子设计工程》2018年第13期159-163,共5页Electronic Design Engineering

摘　　要：为解决传统汇流环系统中由于旋转时的导电环和刷丝之间形成滑动或者滚动的接触摩擦副而造成的一系列不利因素和安全隐患,本文将非接触能量传输技术引入汇流环系统中,即将该技术应用在旋转关节上,设计了新型的非接触电磁耦合汇流环系统,使得系统能在复杂的工况下安全运行。对于该系统,首先提出了一种改进型电磁耦合机构,针对改进型耦合机构进行建模和磁路特性分析;并运用ANSOFT MAXWELL软件对两种不同耦合结构进行磁场仿真分析,并得出改进型结构相对于对称磁罐式结构具有更好的耦合特性;最后针对改进型电磁耦合结构进行磁芯结构优化,进一步提高了耦合系数和机构的抗偏移能力,以提高系统传输效率。This paper focused on solving a series of unfavorable factors and safety hazards caused by the sliding or rolling contact friction formed between slip ring and brush during the rotation process. With the application of the contactless power transmission technology onto the rotary joint,designed a contactless electromagnetic coupling slip ring system to make it run safely with complex conditions. In the system,this paper proposed an improved electromagnetic coupling structure,established the model and launched Magnetic path characteristic analysis. And by using Ansoft Maxwell to analysis two different kinds of coupling structure＇s coupling characteristics and turns out the improved electromagnetic coupling structure has better coupling property. Finally,a kind of coupling structure optimization was taken to further improve coupling coefficient and system transmission efficiency.

关 键 词：无线能量传输 电磁感应耦合 非接触 磁路结构 耦合系数 电磁仿真分析 

分 类 号：TN803[电子电信—信息与通信工程]